Automobile bumper



Apr. M1923.

E. W. KETTLITZ ET AL AUTOMOBILE BUMPER Filed July 20. 1922 w/mfssfs Geo-l' plied thereto or removed elements.

Patent Apr. 17,

STATES EDWARD W. KETTLITZ, 0F NEW YORK, AND GEORGE KUHN, 0F ST. ALB S, YOEX.

' AUTOMOBILE BUMPER.

application ined Juiyao, 1922. semi iro. 576,280.

of the Bronx, in the countyvof Bronx andv State of New York, and GEORGE KUHN, a

citizen of the United .States,and a residentl of St. Albans, county of Queens and have invented a new and Improved Automobile Bumper, of which the following is a full, clear, and exact description.

This invention has relation to shock absorbing devices and has particular reference to an improvement in bumpers for automobiles.

The invention aims for one yof its principal objects to produce a bumper construction which contains a maximum of shock absorbing qualities and this without employing a device of unwieldy construction or unnecessary weight.

As a further object the invention contemplates a bumper construction utilizing in the main standard pipes and pipe fittings which render it inexpensive to manufacture and produce.

As a still further object the invention contemplates a simple and effective means borough of Queens', in the for attaching the bumper to the chassis;

the saine may be readily aptherefrom without the aid of a skilled mechanic.

frame whereby With the above recited and other objects` l turedv as at 28 to snugly in View, the invention resides in the nove construction set forth in the following s eciiication, particularly pointed out in the appended claims and illustrated in the accompanying drawing,l it being understood that the right is reserved to embodiments other than those actually illustrated herein to the full extent indicated by the general meaning ofgithe terms in which the claims are/expressed.

In the drawing- Figure 1 is a fragmentary plan viewofv anI automobile withv a bumper constructed in accordance with-the invention associated therewith, ,y

Fig. 2 is a detail enlarged side view theFreof. fr l d l ig. 3 is a agmentary en arge sec rena view through one of the` shock absorbing Referring tot e drawing by characters of reference, A 'designates an automobile or State of New York,

ward

motor vehicle and B the front ends of the chassis frame to which the bumper C constructed in accordance with the invention is attached. The bumper includes a crossbar 10 which Vpreferably consists of aflat strip of material of the desired strength and configuration. A pair of angular brackets 11y arel employed for attaching the bumper to the forward endsof the chassis frame B, said angular brackets consisting of rearwardly projecting substantially lright an- 14 connect each terminal 13 with the crossbar 10 and support the crossbar from the brackets 11. As illustrated the shock absorbing elements areyconst ructed from a length of standard pipe section 15 which is exteriorly threaded at its opposite ends to receive the caps 16 and 17,

the former having .a central aperture. 18 A place.` The pipe section 15 constitutes a cylinder or barrel within which the medial'u enlarged boss 25 of a shaft section 26 is snugly received to operate as a plunger, a

coiled contractile spring 27 -being interposed between the enlarged boss 25 and the inner is centrally aperreceive the shaft section 26 and allow for the axial movement of said shaft section therethrough The outer 'end of the shaft section 26 is threaded cap 16. FThe outer cap 17 as at 29 and said threaded end is passed` through anaperture 30 in the crossbar 10 with retaining or threaded thereovervand disposed at the inner and outer sides of the-,crossbar. Each pair of shock absorbing elements 14 are of similar construction and are disposed parallei to each other as clearly illustrated in Fig. 1. The articular mode of attaching the rearly projecting arm 12 with the brackets 11 to the forwardends of the chassis frame B consists in the employment of-.a pair of hook bolts 33 which are respectively passed transversely through gular terminals 13. A pair of shock ablsorbing elements binding nuts 31 and 32 a front aperture in the i arm 12 andan inclined rear slot134 in said arm. The hooked terminals 35 ofthe bolts ngageand embrace the lower fla e of the side rails of the chassis frame w ich are of channel iron construction.` Nuts 3eV are threaded to the opposite ends of the hook bolts to retain the brackets in place.

From the foregoing it will thus be seen that an extremely simple and inexpensive form of bumper has been produced which includes a maximum of shock absorbing qualities with a limited amount-of movement of the bumper. The cost of production has been greatly reduced by employing standard pipe sections and pipe fittings. The parts are made removable and interchangeable whereby replacements when necessary may be accomplished readily at a low cost. r

We claim: f

l. A. bumper for automobiles comprising a crossbar, a pair of attaching brackets having inwardly projecting forward ends, a pair of shock absorbing elements carried by the inwardly projecting ends of each bracket for connecting the crossbar to the vehicle ind yieldably supporting the same there- 2., A bumper for automobiles `comprising a crossbar, a

vehicle and having inwardly projecting forward ends, a pair of shock absorbing elements carried by the said inwardly projecting ends of the brackets, each element comprising a pair of telescopic members having a coi ed contractile spring interposed therebetween to constitute means for connecting the crossbar to the vehicle zizlnd for yieldably supporting the same there- 3. A bumper for automobiles including angular brackets each consisting of a rearwardly projecting terminal attached to the ends of the chassis frame and inwardly pro jecting outer terminals, a pair of forwardly projectin cylinders from each of said terminals, p ungers telescopically mounted in each cylinder, a coiled contractile spring within each cylinder for normally projecting the plungers therefrom, and a crossbar secured to the outer free ends of the pluners. o g EDWARD W. KETTLITZ.l GERGE KUHN. 

